Scientists Just Made a Wearable, Ultra-Light Material That Actually Cools Your Skin During Exercise

MIT-led researchers developed a breathable hydrogel with air-filled channels that lets oxygen and water vapor pass through far more easily than standard hydrogels.

The material stays soft and durable while helping reduce heat and sweat buildup during exercise.

When used in wearable electrodes, it improved ECG signal stability by reducing skin interference.

The advance could make long-wear medical patches and health monitors more comfortable and reliable.